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authorLinus Torvalds <torvalds@linux-foundation.org>2013-06-30 18:06:25 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-06-30 18:06:25 -0400
commit4b483802fddf74d8dae5970d7fcd55525c7cfa17 (patch)
treef2b52fbbd99b3da437a411c78cea4e083645fe80
parent6c355beafdbd0a62add3a3d89825ca87cf8ecec0 (diff)
parenta9e94ec3504ead4b87a929bc57f5aa99a6590437 (diff)
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley: "This is a set of seven bug fixes. Several fcoe fixes for locking problems, initiator issues and a VLAN API change, all of which could eventually lead to data corruption, one fix for a qla2xxx locking problem which could lead to multiple completions of the same request (and subsequent data corruption) and a use after free in the ipr driver. Plus one minor MAINTAINERS file update" (only six bugfixes in this pull, since I had already pulled the fcoe API fix directly from Robert Love) * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] ipr: Avoid target_destroy accessing memory after it was freed [SCSI] qla2xxx: Fix for locking issue between driver ISR and mailbox routines MAINTAINERS: Fix fcoe mailing list libfc: extend ex_lock to protect all of fc_seq_send libfc: Correct check for initiator role libfcoe: Fix Conflicting FCFs issue in the fabric
-rw-r--r--MAINTAINERS2
-rw-r--r--drivers/scsi/fcoe/fcoe_ctlr.c15
-rw-r--r--drivers/scsi/ipr.c16
-rw-r--r--drivers/scsi/ipr.h6
-rw-r--r--drivers/scsi/libfc/fc_exch.c37
-rw-r--r--drivers/scsi/libfc/fc_rport.c2
-rw-r--r--drivers/scsi/qla2xxx/qla_inline.h11
-rw-r--r--drivers/scsi/qla2xxx/qla_isr.c27
-rw-r--r--drivers/scsi/qla2xxx/qla_mbx.c2
-rw-r--r--drivers/scsi/qla2xxx/qla_mr.c10
-rw-r--r--drivers/scsi/qla2xxx/qla_nx.c26
11 files changed, 61 insertions, 93 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 5be702cc8449..ad7e322ad17b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3220,7 +3220,7 @@ F: lib/fault-inject.c
3220 3220
3221FCOE SUBSYSTEM (libfc, libfcoe, fcoe) 3221FCOE SUBSYSTEM (libfc, libfcoe, fcoe)
3222M: Robert Love <robert.w.love@intel.com> 3222M: Robert Love <robert.w.love@intel.com>
3223L: devel@open-fcoe.org 3223L: fcoe-devel@open-fcoe.org
3224W: www.Open-FCoE.org 3224W: www.Open-FCoE.org
3225S: Supported 3225S: Supported
3226F: drivers/scsi/libfc/ 3226F: drivers/scsi/libfc/
diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index cd743c545ce9..795843dde8ec 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -1548,9 +1548,6 @@ static struct fcoe_fcf *fcoe_ctlr_select(struct fcoe_ctlr *fip)
1548{ 1548{
1549 struct fcoe_fcf *fcf; 1549 struct fcoe_fcf *fcf;
1550 struct fcoe_fcf *best = fip->sel_fcf; 1550 struct fcoe_fcf *best = fip->sel_fcf;
1551 struct fcoe_fcf *first;
1552
1553 first = list_first_entry(&fip->fcfs, struct fcoe_fcf, list);
1554 1551
1555 list_for_each_entry(fcf, &fip->fcfs, list) { 1552 list_for_each_entry(fcf, &fip->fcfs, list) {
1556 LIBFCOE_FIP_DBG(fip, "consider FCF fab %16.16llx " 1553 LIBFCOE_FIP_DBG(fip, "consider FCF fab %16.16llx "
@@ -1568,17 +1565,15 @@ static struct fcoe_fcf *fcoe_ctlr_select(struct fcoe_ctlr *fip)
1568 "" : "un"); 1565 "" : "un");
1569 continue; 1566 continue;
1570 } 1567 }
1571 if (fcf->fabric_name != first->fabric_name || 1568 if (!best || fcf->pri < best->pri || best->flogi_sent)
1572 fcf->vfid != first->vfid || 1569 best = fcf;
1573 fcf->fc_map != first->fc_map) { 1570 if (fcf->fabric_name != best->fabric_name ||
1571 fcf->vfid != best->vfid ||
1572 fcf->fc_map != best->fc_map) {
1574 LIBFCOE_FIP_DBG(fip, "Conflicting fabric, VFID, " 1573 LIBFCOE_FIP_DBG(fip, "Conflicting fabric, VFID, "
1575 "or FC-MAP\n"); 1574 "or FC-MAP\n");
1576 return NULL; 1575 return NULL;
1577 } 1576 }
1578 if (fcf->flogi_sent)
1579 continue;
1580 if (!best || fcf->pri < best->pri || best->flogi_sent)
1581 best = fcf;
1582 } 1577 }
1583 fip->sel_fcf = best; 1578 fip->sel_fcf = best;
1584 if (best) { 1579 if (best) {
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 82a3c1ec8706..6c4cedb44c07 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -8980,19 +8980,6 @@ static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8980 if (!ioa_cfg->res_entries) 8980 if (!ioa_cfg->res_entries)
8981 goto out; 8981 goto out;
8982 8982
8983 if (ioa_cfg->sis64) {
8984 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8985 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8986 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8987 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8988 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8989 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8990
8991 if (!ioa_cfg->target_ids || !ioa_cfg->array_ids
8992 || !ioa_cfg->vset_ids)
8993 goto out_free_res_entries;
8994 }
8995
8996 for (i = 0; i < ioa_cfg->max_devs_supported; i++) { 8983 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
8997 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 8984 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
8998 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; 8985 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
@@ -9089,9 +9076,6 @@ out_free_vpd_cbs:
9089 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 9076 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9090out_free_res_entries: 9077out_free_res_entries:
9091 kfree(ioa_cfg->res_entries); 9078 kfree(ioa_cfg->res_entries);
9092 kfree(ioa_cfg->target_ids);
9093 kfree(ioa_cfg->array_ids);
9094 kfree(ioa_cfg->vset_ids);
9095 goto out; 9079 goto out;
9096} 9080}
9097 9081
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index a1fb840596ef..07a85ce41782 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -1440,9 +1440,9 @@ struct ipr_ioa_cfg {
1440 /* 1440 /*
1441 * Bitmaps for SIS64 generated target values 1441 * Bitmaps for SIS64 generated target values
1442 */ 1442 */
1443 unsigned long *target_ids; 1443 unsigned long target_ids[BITS_TO_LONGS(IPR_MAX_SIS64_DEVS)];
1444 unsigned long *array_ids; 1444 unsigned long array_ids[BITS_TO_LONGS(IPR_MAX_SIS64_DEVS)];
1445 unsigned long *vset_ids; 1445 unsigned long vset_ids[BITS_TO_LONGS(IPR_MAX_SIS64_DEVS)];
1446 1446
1447 u16 type; /* CCIN of the card */ 1447 u16 type; /* CCIN of the card */
1448 1448
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index c772d8d27159..8b928c67e4b9 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -463,13 +463,7 @@ static void fc_exch_delete(struct fc_exch *ep)
463 fc_exch_release(ep); /* drop hold for exch in mp */ 463 fc_exch_release(ep); /* drop hold for exch in mp */
464} 464}
465 465
466/** 466static int fc_seq_send_locked(struct fc_lport *lport, struct fc_seq *sp,
467 * fc_seq_send() - Send a frame using existing sequence/exchange pair
468 * @lport: The local port that the exchange will be sent on
469 * @sp: The sequence to be sent
470 * @fp: The frame to be sent on the exchange
471 */
472static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp,
473 struct fc_frame *fp) 467 struct fc_frame *fp)
474{ 468{
475 struct fc_exch *ep; 469 struct fc_exch *ep;
@@ -479,7 +473,7 @@ static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp,
479 u8 fh_type = fh->fh_type; 473 u8 fh_type = fh->fh_type;
480 474
481 ep = fc_seq_exch(sp); 475 ep = fc_seq_exch(sp);
482 WARN_ON((ep->esb_stat & ESB_ST_SEQ_INIT) != ESB_ST_SEQ_INIT); 476 WARN_ON(!(ep->esb_stat & ESB_ST_SEQ_INIT));
483 477
484 f_ctl = ntoh24(fh->fh_f_ctl); 478 f_ctl = ntoh24(fh->fh_f_ctl);
485 fc_exch_setup_hdr(ep, fp, f_ctl); 479 fc_exch_setup_hdr(ep, fp, f_ctl);
@@ -502,17 +496,34 @@ static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp,
502 error = lport->tt.frame_send(lport, fp); 496 error = lport->tt.frame_send(lport, fp);
503 497
504 if (fh_type == FC_TYPE_BLS) 498 if (fh_type == FC_TYPE_BLS)
505 return error; 499 goto out;
506 500
507 /* 501 /*
508 * Update the exchange and sequence flags, 502 * Update the exchange and sequence flags,
509 * assuming all frames for the sequence have been sent. 503 * assuming all frames for the sequence have been sent.
510 * We can only be called to send once for each sequence. 504 * We can only be called to send once for each sequence.
511 */ 505 */
512 spin_lock_bh(&ep->ex_lock);
513 ep->f_ctl = f_ctl & ~FC_FC_FIRST_SEQ; /* not first seq */ 506 ep->f_ctl = f_ctl & ~FC_FC_FIRST_SEQ; /* not first seq */
514 if (f_ctl & FC_FC_SEQ_INIT) 507 if (f_ctl & FC_FC_SEQ_INIT)
515 ep->esb_stat &= ~ESB_ST_SEQ_INIT; 508 ep->esb_stat &= ~ESB_ST_SEQ_INIT;
509out:
510 return error;
511}
512
513/**
514 * fc_seq_send() - Send a frame using existing sequence/exchange pair
515 * @lport: The local port that the exchange will be sent on
516 * @sp: The sequence to be sent
517 * @fp: The frame to be sent on the exchange
518 */
519static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp,
520 struct fc_frame *fp)